Smttt-machxkte



H. L. PIERCE.

Smut Mill.

No. 30,538. Patented Oct. 30, 1860.

fm/enar W@ 1,6%Qd3g N PETERS. mammography. washinmm n. c,

UNITED STATES PATENT OFFICE.

H. L. PIERCE, OF MILLPORT, NENV YORK.

SHUT-MACHINE.

Specification of Letters Patent No. 30,538, dated October 30, 1860.

To all whom it may concern:

Be it known that I, H. L. PIERCE, of Millport, in the county of Chemung,in the State of New York, have invented certain new and usefulImprovements Vin Smut-Machines; and I do hereby declare that thefollowing is a full, clear, and exact description ofthe construction andoperation of the same, reference being had to the annexed drawings,making a part of this specification, in which- Figure l is a perspectiveview; Fig. 2, a longitudinal section of the outside cylinder D, showingthe manner of inserting the scouring rods R, R; Fig. 3 a transversesection of the outside and inside cylinders, in which R, R, are therods, a part of their surface projecting inside of the inner face of theoutside cylinder, and 7L, it, 7L, are radial projections or beatersattached to the surface of the inside cylinder, and b, Z), b, are thestaves with brackets between them. Fig. 4L is a longitudinal section ofthe whole, showing the general arrangement and operation of the whole,in which F, f, f, are the fans or blowers; S, S, S, the draft spouts; Pthe feed hopper, a, the main shaft, R, R, the scouring rods and c, c,the inside cylinder. Fig. 5 shows the underside of the cap M, Fig. l.This fits on the top of the rods, which have pinions on their top ends,and by means of the handles 0, o,

the rods are turned so as to present a rough 0r smooth side on theinside of the cylinder as may be desired. Fig. 6 shows the grooved, utedor notched scouring rods. These may be made with a square top so as tobe turned with a wrench and fastened with a set screw.

The arrangement for turning the rods by means of the cap M, iscalculated more particularly for cleaning grists. When a very smuttygrist is to be ground the rods are` made to present a sharp surface forscouring the grain more thoroughly, but when the grain is not verysinutty a smooth side may be used. After the rods become worn smooth allaround they may be taken out and new ones supplied and thus the machinemay be made almost as good as new.

The above description, together with the drawing annexed, willsuiciently show the operation without further explanation.

That I claim as my invention, and desire to secure by Letters Patent, is

The adjustable metallic scouring rods R, R, R, luted, notched orgrooved, in combination with the cylinder D and cap M, constructed andoperating substantially as described.

H. L. PIERCE. Witnesses:

H. W. SEAMON, SAMU-.EL CAL.

